Big Bird and Snuffy groove to a disco version of “Rubber Ducky”; Guy Smiley and Cookie Monster appear in “Beat the Time”; Grover sings about the letter “I”; Bob and Big Bird meet a dragon in New York’s Chinatown; and Ernie’s opera singing wakes the neighbors. Plus: Harry Monster visits the eye doctor and an animated version of “We All Live in a Capital I.”

It's a feast of vintage Cookie skits! A prank pulled on Bert backfires on Cookie and Ernie; Cookie’s call to his mother ends when he eats the telephone. Also: sing along with a classic version of "One of These Things" and a very animated ABC song.

An orange Oscar demands a baked-bean sundae; Kermit the Frog explains the word "in"; and Gospel diva Mahalia Jackson sings "He’s Got the Whole World in His Hands." Also: "Solomon Grundy" and "Wanda the Witch" make their debut.

A TV-addicted Telly Monster moves to Sesame Street; Cookie eats his way through an avalanche as train conductor "Casey McFee"; The Count sings "The Song of the Count"; Kermit reports on Sleeping Beauty for "Sesame Street News"; Plus: a classic Harvey Kneeslapper skit.

Grover serves up burgers of all sizes; Bert and Ernie ransack their own apartment; Ernie tricks Bert out of a bigger piece of pie; and Biff helps Salvador DaDa create a museum. The fun continues with the Twiddlebugs and a live-action feature about recycling paper.

Kermit sings the original version of "Being Green"; Bert and Ernie perform the classic "Banana Telephone" skit; Roosevelt Franklin sings "I’m Roosevelt Franklin"; Bob sings an early version of "Who Are the People in Your Neighborhood?" Also: Cookie Monster eats Ernie’s cookie and Oscar calls "Dial-a-Grouch."

An early Elmo meets Bob’s deaf friend and learns to say "hello" in sign language; a classic skit of Phil Harmonic and Placido Flamingo live from the Nestropolitan Opera; Gerald’s dog, Sparky is re-imagined as an alligator, and The Honkers play "Mary Had a Little Lamb" on their noses.